John Wesley Powell and the exploration of the Colorado River / by Jack R. Dunn. 1968.

Dunn, Jack R.

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Powell, John Wesley, 1834-1902

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Wallace Earle Stegner is an author. From the guide to the Papers, 1868-1879, relating to John Wesley Powell and the Colorado River, 1868-1879, (American Philosophical Society) John Wesley Powell was a geologist, ethnologist, and director of the United States Geological Survey; he was elected to the American Philosophical Society in 1889. From the guide to the John Wesley Powell correspondence, 1869-1879, of the Powell Survey, 1869-1879, (American Philosophical So...